A method for realizing a three-dimensional solid structure of mesh reflector antenna wire mesh
A technology of wire mesh and three-dimensional entities, applied in the field of communication, can solve problems such as large amount of calculation, complicated wire mesh process, and a large amount of experimental measurement data, and achieve the effect of improving design efficiency
Active Publication Date: 2018-11-02
XIAN INSTITUE OF SPACE RADIO TECH
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Problems solved by technology
However, the disadvantage of this method is that the use of mathematical statistics method requires a large amount of experimental measurement data, and the process of generating wire mesh is complex and computationally intensive.
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[0029] Refer to attached figure 1 , the specific embodiments of the present invention are as follows:
[0030] Step 1, given the real wire mesh of the mesh reflector antenna or the real picture of the wire mesh, if the real wire mesh is given, the wire mesh needs to be tiled vertically (perpendicular to the plane where the wire mesh is tiled) ) take a picture and obtain a picture, the wire mesh structure is a periodic array structure, and the provided picture only has a truncated surface at the edge; the cross-sectional diameter D of the wire in the given wire mesh structure, the wire mesh shown in the figure 50 microns in diameter;
[0031] Step 2, according to the picture provided in step 1, such as figure 2As shown, extract the repeating unit of the wire mesh structure of the mesh reflector antenna, and use the repeat unit as the cell of the wire mesh structure of the mesh reflector antenna, such as figure 2 The structure marked in the middle black box; starting from t...
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The invention discloses a method for realizing a three-dimensional entity structure of a metal wire mesh of a mesh reflector antenna. The method comprises the specific steps of (1) giving a metal wire mesh structure or image of the mesh reflector antenna; (2) determining cell elements of the metal wire mesh structure and the number and lapping relationships of metal wires in the cell elements; (3) obtaining a two-dimensional coordinate value of a cell element measurement point; (4) obtaining a three-dimensional curve of the cell elements according to the measurement point; (5) obtaining cell element structures that are free of interference and in close contact at the intersection; (6) processing a cell element connector to obtain a cell element structure capable of being spliced; and (7) performing assembly by adopting an array technology to obtain the three-dimensional entity structure of the metal wire mesh of the mesh reflector antenna. According to the method, the three-dimensional entity structure of the metal wire mesh of the mesh reflector antenna is realized in combination with the array technology by adopting a graphic measurement technology and a section scanning technology; the deficiencies of relatively large error and high calculation amount in the structure realization process in the prior art are overcome; and the method has the advantages of high precision and accurate structure.
Description
technical field [0001] The invention belongs to the technical field of communication, and further relates to a method for realizing a three-dimensional solid structure of a mesh reflector antenna wire mesh in the technical field of radar antennas. Background technique [0002] Mesh reflector antennas have broad application prospects in satellite communication, remote sensing measurement, deep space exploration and earth observation, and are one of the key technologies for satellite payloads. In order to study the structural performance and passive intermodulation characteristics of the mesh reflector antenna, determine the antenna structure parameters and the contact force of the contact node, it is necessary to carry out geometric modeling, statics, dynamics and thermodynamics performance simulation analysis of the antenna structure, so that To achieve the purpose of reducing the number of tests, improving the efficiency of development, and reducing the cost of development....
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IPC IPC(8): G06T17/30
CPCG06T17/30
Inventor 张娜崔万照白鹤李团结王瑞李韵
Owner XIAN INSTITUE OF SPACE RADIO TECH